Improvement in well-borers



Unire@ Sterns GEORGE L. VVITSIL ANI) EDVARD BUB-KE, OF PHILADELPHIA, PA.

IMPROVEMENT IN WELL-BORERS.

Specification forming part of Letters Patent No. 16,5 l?, dated February 21, 1865.

To all whom it may concern:

Beit known that we, GEORGE L. WrrsrL and EDWARD BURKE, of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Machine for Boring Wells 5 and we do hereby .declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a side view of our drill and discharging angers. Fig. 2 is a side elevation, in detail, of the mechanism for rotating the drill and also the angers. Fig. 3 is a perspective view showing the mechanism ot' Fig. 2 mounted in a frame-work, ready for operation.

Similar letters of reference indicate corresponding parts in the three figures.

The object of our invention is to combine with a central upward-discharging rockdrill a contrivance for elevating the tine dbris and earth to the top of the well, and thus keeping the drill clear during the operation of boring, as will be hereinafter described.

In Fig. l, A and A a are two augerblades, right and left, both revolving at the same time. N is the chamber containing the reamer and cuttin g-plowshares. C is a conical drill, the lower part of which is foursquare. 'lhe upper part of the cone is corrugated or ribbed deeply, like the cone of a coffeegrinder. C c is a solid base with two square slots in the same, connected permanently to the inside of the chamber N.

In Fig. 2, B and B b are two plowshare members attached permanently to the base of the chamber N, and forming a part of the same. C is a conical drill, the lower part of which is four-square, the section above a corrugated cone, the top of which connects permanently to the cutters B and B b, which connection forms in shape a double ogee. The sides of same have cutters. C c is a solid connection in the chamber N, and has two square slots to receive the lower points of the auger-blades A and A a.

In Fig. 3, Q Q are substantial uprights to support theshaft and mechanical application of power. D is a bevel cog-wheel which acts upon bevel-Wheel D d. E is a central double cog-wheel which acts upon wheels E e. E e are two bevel cog-wheels which put the blades A and A a in motion. F and F are continuavangers to which they are attached.

tions ot' F f, each having a cavity in the eenter to receive the rods M and M. The bottoms of F and F have a plate with a thread cut in same to receive the worm of the connecting-screw p p. F f are continuations of F, and are also the connecting-sections of the auger-blades A and A af. A and A a are two auger-blades otan elongated twist, one twisted to the right and the other twisted t0 the left. M are rods working in an aperture in Ff and F, and also within the inner circle of the bevelwheel D d. g shows the shape of the connection with auger-blades, and g g the shield or coveringslide over the same, tightened with a small wedge. p p are connectingscrews working in F and F, the thread of which arc the reverse of angers A and A a.

In Fig. 4, Q and Q are solid permanent nprights firmly braced to sustain the mechanical arrangement necessary to put the angers and borer in motion. K is the balance-wheel attached to the shaft. h is the b'eltingwheel. P is the shaft of the motive power. The other wood parts are the nprights or scaffolding and platforms that we consider convenient for working our machine, which may be used or omitted, as may be desired.

Method of operating our well-borer: The motive shaft P by beltin g puts in motion the shaft and the double bevel-wheel E, which acts upon and puts in motion the bevel-wheels E e and E c, causing them to turn the angers A and A c reverse to each other, one turning right and the other left. The effect ot' the screws p 19 is to keep a continued pressure downward on the angers A and A a. Therefore the screws are cut the reverse of the The rods M M are merely stiii'ening and guiding rods, the whole of which revolve within the inner rim of the bevel-wheel D df. The shaft also puts in motion wheel D, which causes the whole attachments, together with the cutters B and B b and all connected with the chamber N at the bottom of the angers to revolve, as they are connected by the member C c secnrely to the chamber N. It will be observed that while D d is revolving E e and E e is also revolving, the two smaller revolutions within the larger revolution of D d', the effect of which will be, while the cutters B and B b and drill G are boring, the debris or core will be taken up by the action of the elongated twistaugers A and A a', one of which is twisted right and the other left. Should they not carry oft' the dbris or core as fast as it accumulates, the action of D d may be stopped by turning a thumb-screw on each side, which drops it to F and F, while the two auger-motions E c and E e are continued. Should the cutters B B b and C meet with a very hard substance, the action of the revolving angers may be stopped4 while D d is revolving by pulling out the bolts below the bevel-wheels E e'. The blades or angers will then fall into the square slots in C c', as shown in Fig. 2, thereby giving more strength and power to chamber N by the revolution of the bevelwheel D d', which arrangement and working will expedite the boring of wells and work up to the surface the dbris or core without the carried out with each bar or length of auger, to whatever length may be required to sink the well.

We do not confine ourselves to the mechanical arrangement herein described for working our well-borer, as other contrivances may be employed for this purpose; but

Vhat we do claim as new, and desire t) secure by Letters Patent, is-

1. The employment of two or more augers,

in combination with a central upward-discharging drill, 4substantially as described.

2., Gonnnecting the angers A A a' to the drill-collar N, in such manner that the angers can be rotated independently of the drill, or can be made to rotate the drill at pleasure, substantially as described.

3. The center drill-point, G, plowingfcutters B B b, collar N, and the right and left twisted elevators A A a', combined and operating substantially'as herein described.

4. Feeding the angers down to their work by means of right and left screws p p p p, applied and operating substantially as described.

In testimony whereof we have signed our names to this specification in the presence ot' two subscribing witnesses.

GEO. L. VVITSIL. EDWARD BURKE.

Witnesses:

JOSEPH BURKE, J. A. DENNrss. 

